Rock-shaft bearing.



E. D. ROY.

ROCK SHAFT BEARING.

APPLICATION HLED MAR. 28. 1911.

Patent d July 31, 917.

.llwzvei EDWARD D.-ROY or GREENVILLE, SOUTH CAROLINA.

ROCK-SHAFT BEARING.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed March 28, 1917. Serial N 0. 157,959.

To all whom it may concern:

Be it known that I, EDWARD D. ROY, a

in the bearings soon become worn, thus necessitating the substitution ofa new shaft. It is'the objectof this invention to relieve the shaft ofpractically all wear at the bearings and .transfer the wear to memberswhich may be readily removed and renewed at slight expense, thus savingthe cost of renewing the shaft itself.

In the drawing Figure 1 is a vertical longitudinal seotional viewshowing my device applied to one of the bearings of a loom rock shaftFig. 2 is a vertical sectional view on the line 2-2 of Fig. 1; and

Fig. 3 is a perspective View of the parts of my device separated fromeach other.

In the drawing annexed, adesignates a. shaft which may be the well knownrocker shaft used in Crompton and Knowles or other looms and whichextends through the usual tubular bearing 6 affixed in the usual mannerto the frame a of the loom or other machine. It is usual to mount theshaft in two of these bearings b, one at either side of the machine, butI have shown but one of these bearings in my drawing.

Aflixed to the shaft by a set-screw (1 adjacent to the inner end of eachof the bearings b, is an upstanding arm at, and affixed to the innerface of the outer end of the arm d is a supporting member 6, whose undersurface is curved to fit down over the cylindrical upper surface of theusual hub part of the bearing 6. The shaft extends loosely through thebearing 6 and is supported entirely by the member 6 bearing upon the hubor cylindrical portion of the stationary bearing 1), so that the wearincident to rocking the shaft will take place entirely on the contactingfaces of the parts 0 and b. To reduce the wear toa minimum on thecylindrical hub b and to transfer it entirely to the supporting member6, I may of course afiix to the wearing face of member e a suitable wearplate or leather and make the same detachable for renewal purposes, asshown at f in Fig. 2.

The supporting member 6 is mounted on the arm (1? in such manner as tobe readily adjusted with respect to the shaft, so as to nicely adjustthe parts to take the weight of the shaft of]? the bearing 6. I show forthis purpose a slot 9 .in the arm 03 and bolt. 71. carried by the member6, the threaded end of said bolt extending through the slot and beingprovided with .a clamp nut z'. I further provide an" adjusting screw jin a lateral ear is formed on the outer end of the arm (Z, thisadjusting screw being adapted to bear on the outer end of the member 6,a suitable lock nut Z being mounted on the screw. In

the curved foot piece m of the supporting member 6, I provide a radialoil pocket n leading to the bearing face of this foot piece forconvenience lI1' OlllI1g the contacting faces. This oil pocketiscylindrical in shape and to assist in feeding the oil from it to thecontacting faces of the parts, I drop a ball into the passage, this ballbeing approximately the diameter. of the passage and arranged togravitatingly rest upon the curved bearing face of the hub 6. Therocking of the shaft and the supporting member 6 will cause the ball torotate and thus cause the oil to be fed to the contacting faces of theparts. The outer end of the oil passage nis slightly constricted toprevent accidental displacement of the ball by,

jarring.

It will be observed also that the supporting member 0 is readily guided0n the arm a? by means of flanges ;0 formed on the side edges of thearm.

The nature and scope .of the invention having been thus indicated andits preferred embodiment having been specifically described, what isclaimed as new is:

a 1. In combination, a rock shaft, :1 stationary cylindrical memberthrough which the rock shaft extends, an arm affixed .to the rock shaftadjacent said cylindrical member, and a supporting member affixed tosaid arm and shaped to fit down upon said cylindrical member, for thepurpose set forth. a

2'. The structure recited in claim 1, means being provided for radiallyadjusting the supporting member with respect to the shaft.

:3. The structure recited in claim 1, the

V 5 supporting member being provided with a lubricatlng passage leadingto the contacting faces of the said supporting member and thecylindrical member.

4. The structure recited in claim 3, said lubricating passage beingclosed at its inner 1 J end by a rolling element which gravitatinglybears upon the cylindricalmember.

In testimony whereof I hereunto aflix my signature.

EDWARD D. ROY. Witnesses HARRY B. KILGORE, W. B. PERRIN.

